Television receiver with a micro-computer controlled operating part and a switching network part

Abstract

A television receiver in which a microcomputer controls an operating part, and a clock generator for the microcomputer is synchronized by synchronization pulses in the television signal transmitted to the receiver. The clock generator is also in the form of a control generator for a switching network part and for the deflection stages of the television receiver. The signal from the clock generator is divided and processed by a pulse-width modulator. This pulse-width modulator emits a control signal for controlling the switching network part.

We claim: 
     
       1. A television receiver comprising: a micro-computer controlled operating part; a switching network part; deflection stages; said television receiver receiving a television signal with synchronization pulses; a micro-computer for controlling said operating part; a clock generator for said micro-computer and synchronized by said synchronization pulses; said clock generator also comprising a control generator for said switching network part and for said deflection stages; a pulse-width modulator for dividing and processing a signal from said clock generator and emitting a control signal for controlling said switching network part. 
     
     
       2. A television receiver as defined in claim 1, including phase-comparator means for dividing and processing a signal from said clock generator; said deflection stages having a horizontal deflection stage, said phase-comparator means having an output for controlling said horizontal deflection stage. 
     
     
       3. A television receiver as defined in claim 1, including a frequency divider for dividing a signal from said clock generator; a vertical logic circuit, said frequency divider having an output for controlling said vertical logic circuit. 
     
     
       4. A television receiver as defined in claim 1, including delay means, said switching network part being turned on directly and said deflection stages being turned on through said delay means when said television receiver is turned on. 
     
     
       5. A television receiver as defined in claim 1, including an integrated component for combining signals controlling deflection of electron beams in a picture tube of the television receiver and said switching network part. 
     
     
       6. A television receiver as defined in claim 5, wherein said deflection stages have a horizontal deflection stage; and means for combining signals controlling said horizontal deflection stage and said switching network part into one signal. 
     
     
       7. A television receiver as defined in claim 5, wherein said signals controlling deflection of said electron beams and said switching network part are emitted in form of a tri-state signal through a single output of said integrated component. 
     
     
       8. A television receiver as defined in claim 5, including switch means for turning off said signals controlling deflection of electron beams in said picture tube and said switching network part. 
     
     
       9. A television receiver as defined in claim 8, wherein said switch means is blocked and released by said microcomputer.